
Appendix A
Troubleshooting
n the event you encounter a problem using your Telenetics modem, Irefer to the troubleshooting information in this appendix. To
troubleshoot the power supply and backplane on the Universal Data Shelf, refer to the Telenetics RM16M Installation and Operation Manual for the Universal Data Shelf version you have.
,
IMPORTANT
If you encounter a problem with your modem, be sure the modem switches are set to the appropriate positions. If a switch is halfway between an on and off setting, the modem will not operate properly.
Problem Solving
Table
Table
If… | Perform These Procedures… |
|
|
Modem does not respond and | Check the Universal Data Shelf’s |
all LEDs are off. | power supply module(s). |
|
|
Modem does not receive data, | The receive line pair may be |
and the DCD and RxD LEDs | disconnected from the modem. Make |
are off. | sure the transmission line connection |
| to the rear panel of the Universal Data |
| Shelf is accurate and secure. |
| The receive signal level may be below |
| the CD threshold. Set |
| see whether configuring the modem |
| for a −43 dBm threshold resolves the |
| problem. |
|
|
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